Tag "mechanical televisions"
Large Images Now Obtained by Crater Tubes (Jan, 1932)

The key to “large” screen TVs of up to 6″-8″ is simple: water cooling.

Large Images Now Obtained by Crater Tubes

THE neon crater tube has practically revolutionized the television industry over night and has lifted the art from the “peep-hole” stage into the realm of real home entertainment. True, we do not have all the elaborate detail in the images received, that we might like to have, but the crater tube has gone far to brighten up and enlarge the television image. Anyone who has seen the Jenkins television demonstrations—such as those at the New York Radio show will agree, we believe, that the neon crater tube is indeed the device we have long awaited. It requires, however, a special lens-disc, and more energy than the flat-plate lamps which it succeeds.

Midget Television Set for Home (Oct, 1932)

Midget Television Set for Home

MIDGET television receivers, corresponding to the midget receivers now in widespread use, are now available for home entertainment. As pictured at the right, the receiver is housed in a small cabinet and is operated with eight tubes, which deliver current to a crater neon tube. The scanning disc has sixty holes and is operated by a synchronous motor.

Mystery Cell Aids Television (Aug, 1930)

Mystery Cell Aids Television

Remarkable demonstration in theater shows big improvement in seeing and hearing by radio. New process used to aid planes blinded by fog.


TWO remarkable developments recently revived public interest in television, and brought the dream of practical transmission and reception of “images on the air” a step nearer realization.

In a dramatic demonstration at Schenectady, N. Y., a few weeks ago, Dr. E. F. W. Alexanderson, consulting engineer of the General Electric Company, projected six-foot images bright enough to be seen by a large gathering. Before that, the best television image had been only a few inches square and had been produced by the feeble flickering of a neon tube.